Who was Petrarch ? What is he known for?

Petrarch, Italian in full Francesco Petrarca, (born July 20, 1304, Arezzo, Tuscany [Italy]—died July 18/19, 1374, Arquà, near Padua, Carrara), Italian scholar, poet, and humanist whose poems addressed to Laura, an idealized beloved, contributed to the Renaissance flowering of lyric poetry.

Explanation:

d.prevent the spread of communism outside of eastern europe.

studies show tha in 7.5 billion years from now, the expanding sun will engulf, and destroy, the earth.